Improvement in revolving harrows and pulverizers



T.A.KERSHNER. BEVOLVING BARRGW AND PULVERIZER.

Patented June 27, 1876.

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TTNITED ST'IES THOMAS A. KERSHNER, OF SEYMOUR, ASSIGNOR TO HIMSELF AND.ALEXANDER CARR, OF MEDORA, INDIANA.

IMPROVEMENT IN REVOLVING HARROWS AND PULVERIZERS.

.Specification forming part of Letters Patent No. 179,320, dated June27, 1876; application filed January 15, 1876.

To all whom it may concern:

Be itknown that I, THOMAS ALEXANDER KERSHNER, of Seymour, in the countyof Jackson and State of Indiana, have invented a new and usefulImprovement in Revolving Harrow or Pulverizer, of which the following isa specification:

Figure l is a vertical longitudinal section of my improved machine. Fig.2 is a top view of the same.

Similar letters of reference indicate corresponding parts.

The object of this invention is to furnish an improved machine forstirring up, pulverizing, and leveling plowed land, and other land,which shall be simple in construction, convenient in use, efiective inoperation, and not liable to become choked with trash.

The invention consists in the teeth made with curved forward edges,eonoav'ed rear edges, and broad heads pointed to the rearward, incombination with the rotating cylinder; and in the combination of thehinges, the hinged frame, and the toothed cylinder with the frame, theaxle, and the wheels, as hereinafter fully described.

A are the wheels, which are rigidly attached to the axle B. The axle Brevolves in bearings attached to the frame 0, to which the tongue D isattached. To the rear end of the frame 0 is connected a frame, E, byhinges F, which hinges are made with an offset, so that the frame E maybe at a lower level than the In bearings in the side bars of the frame Erevolve the journals of a cylinder, G, to the face of which are attachedteeth H. The teeth H are arranged in spiral lines, and their forwardedges are curved, as shown in Fig.1. The rear edges of the teeth H areconcaved upon an arc of a less diameter than their forward edges, so asto leave their heads wide, and with a rearwardly-projecting point, asshown. This construction of the teeth H enables them to cut their waythrough grass, weeds, stubble, corn-stalks, and other trash, andprevents them from becoming choked or clogged. To one of the journals ofthe toothed cylinder G H is attached a gear-wheel, I, the

teeth of which mesh into the teeth of a small 7 intermediate gear-wheel,J, pivoted to a bracket or plate, K, attached to the rear part of theside bar of the frame 0, so that the gearwheel I may be thrown out ofgear by turning the frame E up upon its hinges, and may be thrown intogear by lowering the said 7 frame E into working position.

The teeth of the intermediate gear-wheel J mesh into the teeth of alarge gear-wheel, L, rigidly connected with one of the wheels A, so thatthe toothed cylinder G H may be rotated by the advance of the machine. Mis a lever, which is pivoted to a standard, N, attached to one of theside bars of the frame 0 near its rear end. The rear end of. the lever Mis pivoted to the rear or hinged frame E, and its forward end projectsinto such a position that it may be conveniently reached by the driverfrom his seat, so that by operating the said lever M the toothedcylinder may be raised from the ground, as may be desired. The forwardpart of the lever M moves along a standard, 0, attached to the frame 0,and which has notches or teeth formed in it, to receive the lever M andhold it in any position into which it may be adjusted. P is the driversseat, the standards Q of which are attached to the forward part of theframe 0, so that the drivers weight may balance the weight of the frameE and toothed cylinder G H.

Having thus described my invention, Iclaim as new and desire to secureby Letters Patcut- 1. The teeth H, made with curved forward edges,concaved rear edges, and broad heads pointed to the rearward, incombination with the cylinder G, substantially as herein shown anddescribed.

2. The combination, with axle B and frame 0, of the hinged frame Eandpendent hinges F, arranged substantially as and for the purposespecified.

THOMAS A. KERSHNER.

Witnesses:

THOMAS McGoLLUM, MICHAEL A. YOA'lREY.

